Any of the solutions suggested would work, or you could try the simple approach of setting up a spreadsheet, and putting it on the network. The only potential problem is if two or more people want write access to it at the same time.
The other trick that I used when doing tech support was to create a custom desktop wall paper that said 'NO PROJECTOR DISPLAY? PRESS Fn & F10' or whatever key combination was right for that computer. It got over the problem of stickers falling off, advice sheets not getting read etc. and cut down on the support calls from frantic staff with a room full of folk and no presentation to show.
Pete